Electrical water heater



Aug. 25, 1931. F. A. E. JENKINS 1,820,458

ELECTRICAL WATER HEATER Filed June 10, 1950 3 Sheets-Sheet l /NveN-m@ Aug. 25, 1931. F. A. E. JENKINS 1,820,458

ELECTRICAL WATER HEATER I Filed June 10. 1930 :s sheets-sheet z /NVeN Tall 'Y Agi.. ww@ 54%??? 'A115 25, 1931 F. A. E. JENKINS 1,820,458'

ELECTRICAL WATER HEATER Filed June 1o, 195o 5 sheets-sheet 5 Patented ug. k25, 1931 UNITED STATES PATENT OFFICE 1 ELECTRICAL WATER HEATER Application med June 10,1930, serial No. 460,243, and in Australia May 2, 192s. f f

This invention relates to electrical Water heaters of the non-contact type, and it has for its object to provide a heater which is f of cheap and simple construction and duwater supply.

ytudinal sectional elevation thereof; Figs.

l and 8 are sectional perspective views of the y water heaterr chamber; Fig. 9 is a sectional elevation on line 9 4), Fig. 6; and Fig. 10 is a view similar to Fig. 8 but showing ya modified form of water passage.

. With reference to Figs. 1 to 4, the heater is Ifprovided with a casing 1., ot' suitable material and carrying a metal plate 2 whereby the heater will be aiiixable to an appropriate support or locatable in a recess in the wall of a building, The casing 1 is adapted to receive a plurality of U-shaped corrugated elements 3 (Fig. 4)' which are jointed to each other to form a sinuous water passage 4. At one end of such passage 4 is connected the cold water supply pipe 5 and at the other end thereof ,is connected the hot water exit pipe 6.

Thepi e 5 may be furnished with a control cock the spindle 8 of which may pass through a hearing 9 in the plate 2. At its outer end the spindle 8 may be tted with an operating handle 11. The outlet end of the exit pipe 6 may pass through the plate 2 and such end may be provided with a delivery nozzle 10. By arranging the outlet end of the eXit pipe 6 and the spindle l 8 of the control cock 7 to pass through the plate 2 it is provided that the heater will be earth connected when rthe `plate 2 is attached to a wall or other appropriate structure associated with the ground,

- Between the separate sinuate bends of the elements 3 is a cavity or pocket 12y each of which is adapted to accommodate a suitable electrical heating element 13. Such elements are electrically insulated from the elements 3 by the electric insulators 14. The heating elements 13 may be suitably connected to an appropriate sourcev of electric current supply. The leads 16 for suchcurrent supply may pass into the casing 1 and these may have associated therewith a'control switch 17 In operation, when the cock 7 is turned to on position water'will pass from the sup'- ply pipe 5 through the sinuous passage 4 formed by the elements 3 and after being heated in such passage it will have exitv throu h the delivery nozzle 10, the water being eated in the passage 4 upon the switch r17 having also been operated to allow electrical current to pass to the heating elements 13.

Referring tov Figs. 5 to 10, in which modi'- lied forms of the heater are shown, a casing 2O of metal is furnished for the heater. Within the casing are a plurality of U- shaped passages 22 (Fig. 8) or a plurality of sinuous passages 23 (Fig. 10) which are disposed parallel to one another. Adjacent passages 22 or 23 are separated from each other by a pocket 24 (Fig. 7 Said pockets 24 are closed at one end 25, and they are provided to accommodate suitable electrical heating elements 26 which are appropriately electrically insulated from the casing 20 by electrical insulators 28. The heating ele* 'iso ments 26 may be electrically connected toV leads 27 from a source of electric current supply and having associated therewith switch means 29 which may be mounted on the cover 38 that lfits over the heater and may be secured thereto by screws 21 for the purpose of protecting the heating elements 2 The respective passages 22 or 23 are interconnected by ports 30 whereby a continuous sinuous passage for water will thereby be provided within the chamber 20. Said ports 30 inay he located in the closed ends 25 of the pockets 24 and they may be arranged in staggered formation (see Fig. 8).

To the entry end of the said continuous sinuous Water passage may be connected a` cold Water supply pipe 32 itted with a stop cock 33 having an operating handle 34. The exit end of the said continuous sinuous passage may have an exit port 35 (see F ig. 9) leading into a delivery passage 89 to nozzle 36, Which may be provided With a stop cock 40. Near the exit port 35 inay be connected a pipe stl leading to a shower.

The heater shown in Figs. 5 to l0 is fixed in position on a support and is also operated similarly to the heater described and shown in reference to Figs. l to d.

What I. claiin as my invention and desire to secure by Letters Patent is l. A Water heater' Comprising a casing having a plurality of circuitous Water passages therein connected at one of their ends by ports, said casing haring pockets therein disposed between the passages, said casing having a delivery passage therein directly connecting the end passages only, heating elements in the pockets, a pipe for conducting cold Water to the passages, and a pipe for discharging Water from the passages connected with the delivery passage.

2. A Water heater comprising a casing having a plurality of circuitous Water pas-rage therein and connected at one of their ends by ports, said casing having pockets forined therein between the passages, electrical heating elements in the poekets, one et the Walls of said pockets having a discharge passage extending therethrough and directly connecting only the end passages.

In testimony whereof l aiii; iny signature.

FREDRICK ALFRED EDWARD JENKINS. 

